InvoiceAdept vs Sage Accounting UK (2026): invoicing or accounting?
Tradespeople searching "InvoiceAdept vs Sage" are usually deciding whether they need a trades invoicing front end or a full accounting back end that can calculate and submit VAT (and, on some Sage products, Self Assessment / MTD for Income Tax paths). Those are different jobs. Buying the wrong one wastes money and creates a second set of books.
This page is an honest 2026 comparison for UK trades. It keeps the live slug invoiceadept-vs-sage-uk (UUID f837750f-d813-4177-a427-5a233f434a3b). It thickens the thin live comparison with more feature tables, CIS honesty, WhatsApp, MTD filing honesty, pricing checked against public Sage UK pages, and clear "who each fits" guidance. InvoiceAdept does not file CIS300, VAT returns, Making Tax Digital updates or Self Assessment to HMRC. Sage markets calculate-and-submit VAT on Accounting plans and MTD for Income Tax messaging on Sole Trader - confirm the live plan on sage.com before you buy.
Pricing honesty (checked 13 September 2026 against public Sage UK pages): Sage Accounting Start / Standard / Plus after-intro list prices on sage.com/en-gb pricing were presented as £20 / £43 / £59 per month excl VAT, with a common promo of 90% off for 6 months (£2 / £4.30 / £5.90 then full price). Sage Sole Trader paid plan commonly marketed around £7/mo excl VAT with free plans underneath - confirm invoice caps and promos on Sage's live page. InvoiceAdept: Free £0 (five invoices/month); Pro £7.99 excl VAT; Pro+ £12.99 excl VAT. Promos change - if unsure, keep qualitative and check sage.com and invoiceadept.com/pricing on the day you buy.
Related reading: InvoiceAdept MTD invoicing for trades, how to invoice a client UK tradesperson, CIS explained, domestic reverse charge and the free invoice generator.
Rules and links checked 13 September 2026. General information only, not tax or software-procurement advice. InvoiceAdept is from Tech Me Today Ltd, Companies House 15917255, ICO ZB944663. Support: [email protected].
The short version
If you need... | Lean toward... |
|---|---|
Fast invoices from the van, WhatsApp send, CIS lines on the PDF | InvoiceAdept Pro or Pro+ |
Bank feeds, VAT return calculate/submit, payroll seats in one brand | Sage Accounting Start / Standard / Plus |
Non-VAT sole trader Self Assessment / MTD for Income Tax path as Sage markets it | Sage Sole Trader (confirm live) |
Both clean trade invoices and full books | InvoiceAdept front end + Sage (or accountant) back end |
Someone who files CIS300 / VAT / MTD / SA inside InvoiceAdept | Neither claim - InvoiceAdept does not file; Sage filing depends on plan - confirm |
Do not buy "MTD-ready invoicing" as a magic filing button. Digital records are not the same as submitting returns to HMRC.
What each product actually is
InvoiceAdept | Sage Accounting (Start / Standard / Plus) | Sage Sole Trader | |
|---|---|---|---|
Category | UK trades invoicing SaaS + digital records | Cloud accounting + VAT path + payroll positioning | Accounts for non-VAT-registered sole traders (as Sage markets) |
Primary job | Create, send, chase, collect invoices | Books, bank, VAT, payroll, filing path | Self Assessment / MTD for Income Tax path messaging |
CIS on invoice | Pro+ labour vs materials | Standard positioned for CIS/suppliers/accruals - confirm return features | Not the Accounting CIS positioning - confirm |
Files VAT to HMRC | No | Markets calculate and submit VAT - confirm plan | Not the VAT-registered Accounting ladder |
Files CIS300 / ITSA / SA | No | Confirm per plan | Markets Self Assessment / MTD ITSA readiness - confirm |
WhatsApp-native send | Yes on Pro / Pro+ | Not a headline trade feature | Not WhatsApp-native |
Best used as | Front end for trades | Back end for VAT-registered firms | Back end for non-VAT sole traders |
Live Sage pricing (checked 13 September 2026)
Public Sage UK Accounting pricing pages (sage.com) presented after-intro list prices as:
Sage plan | After-intro monthly (excl VAT) | Common promo framing (check live) |
|---|---|---|
Accounting Start | £20 | 90% off 6 months → often £2 then £20 |
Accounting Standard | £43 | 90% off 6 months → often £4.30 then £43 |
Accounting Plus | £59 | 90% off 6 months → often £5.90 then £59 |
Sole Trader (paid) | Around £7 | Free plans available underneath - confirm caps |
Sole Trader Free | £0 | Confirm limits on Sage's page |
Caution: Sage promos, payroll add-on rates, snap/receipt allowances and Copilot inclusion change. Third-party round-ups sometimes lag. Before you subscribe, open Sage Accounting pricing and Sole Trader pages on the day. This guide marks prices as checked 13 September 2026 from public pages; if a figure looks stale later, treat it as qualitative and verify.
InvoiceAdept pricing (honest)
Plan | Monthly (excl VAT) | What you get (high level) |
|---|---|---|
Free | £0 | Five invoices per month, 1 user, email/PDF/portal |
Pro | £7.99 | Unlimited invoicing, WhatsApp send, Stripe payments, up to 3 users |
Pro+ | £12.99 | Pro + CIS invoice lines, bank recon, cashflow, reports, audit log, unlimited users |
Stripe's own fees apply (UK cards typically 1.5% + 20p; international higher). InvoiceAdept adds no platform fee on top of Stripe. Annual discounts may be advertised on our pricing page - check live.
Side-by-side feature matrix
InvoiceAdept | Sage Accounting with Ai | Sage Sole Trader with Ai | |
|---|---|---|---|
What it is | Trade invoicing and digital records | Cloud accounting, VAT, payroll, HMRC filing path | Accounts for non-VAT registered sole traders |
Price (13 Sep 2026, excl VAT) | Free / Pro £7.99 / Pro+ £12.99 | Start £20 / Standard £43 / Plus £59 after intro (promo often 90% off 6 months) | Free plans; paid around £7/mo - confirm |
Users | 1 Free; ≤3 Pro; unlimited Pro+ | 1 / 3 / unlimited on Start / Standard / Plus (as commonly marketed) | Confirm on Sage Sole Trader page |
CIS | Deduction on the invoice on Pro+ (£12.99). Labour vs materials. Does not file CIS300 | Standard positioned for suppliers, CIS or accruals. Confirm contractor vs subcontractor CIS return features | Not Accounting Standard CIS positioning |
MTD: records | Yes - invoices, payments, expenses on paid plans; export for accountant | Yes - digital books, bank feeds, categorisation | Yes - as Sage markets bank feeds / invoices |
MTD: filing to HMRC | No. No quarterly ITSA updates, Self Assessment, or VAT return | Sage markets calculate and submit VAT. Confirm live plan | Marketed Self Assessment / MTD for Income Tax ready. Confirm |
Payroll | Not a payroll product | Built-in seats - confirm live employee counts / extras on Start/Standard/Plus | Confirm - do not assume Accounting payroll seats |
WhatsApp send | Native on Pro and Pro+ | Share a PDF yourself - not WhatsApp-native | Same |
Card / online payment fees | Stripe on Pro. No IA platform fee. UK cards typically 1.5%+20p | Sage invoices / payment partners - read their terms; do not invent unpublished fees | Same caution |
Who it is for | Trades who bill from a phone and keep a clean income record | VAT-registered sole traders and small firms wanting books + VAT + payroll | Non-VAT sole traders on Sage's MTD ITSA path |
Best used as | Front end: send, chase, collect | Back end: bank, VAT, payroll, return | Back end for non-VAT sole trader |
Records versus filing, in plain English
HMRC's Making Tax Digital rules care about digital records and, separately, submitting updates and returns through compatible software. Keeping invoices in InvoiceAdept helps your record trail. It does not mean InvoiceAdept sends VAT returns, CIS300 or Self Assessment for you.
Activity | InvoiceAdept | Sage Accounting | Sage Sole Trader |
|---|---|---|---|
Create sales invoices | Yes | Yes | Yes (as marketed) |
Keep digital income/expense records | Yes on paid plans | Yes | Yes |
Bank feeds / reconciliation | Pro+ bank recon positioning | Core accounting feature | As marketed |
Submit VAT return to HMRC | No | Markets calculate/submit - confirm | Not the VAT ladder |
Submit CIS300 | No | Confirm on CIS-positioned plan | Not the focus |
Submit MTD for Income Tax / SA | No | Confirm product | Markets readiness - confirm |
Export for accountant | Yes | Yes | Yes |
If your accountant already files, InvoiceAdept as a clean front end is often enough. If you want one brand to hold books and press submit on VAT, Sage Accounting is the product category - still confirm the plan.
CIS: the invoice is not always the return
CIS has two different paperwork jobs:
1. Showing labour vs materials and expected deduction on the subcontractor invoice (what InvoiceAdept Pro+ helps with). 2. Filing the CIS300 monthly return (what InvoiceAdept does not do).
Need | InvoiceAdept | Sage |
|---|---|---|
CIS split on the PDF you send | Pro+ | Confirm invoice + CIS tools on Standard+ |
CIS300 monthly return filing | Does not file | Confirm contractor vs subcontractor return features on the plan you buy |
Householder jobs | No CIS decoration | Same - householder is not a CIS contractor |
Materials at direct cost | Show tickets; carve-out when CIS applies | Same accounting discipline inside Sage |
Softening: do not invent that Sage "always files CIS300 on every plan" or that InvoiceAdept "is CIS compliant filing software". Read the live plan matrix.
WhatsApp, PDF and getting paid
Channel | InvoiceAdept | Sage |
|---|---|---|
Email / PDF | Yes | Yes |
Customer portal | Yes (product feature set) | Sage customer payment / invoice flows as marketed |
WhatsApp-native send | Pro / Pro+ | Not a headline native feature - you can still share a PDF |
Card take | Stripe; no IA platform fee; UK 1.5%+20p typical | Payment partner terms - check Sage |
Chase / reminders | Product workflows | Accounting chase tools as marketed |
Trades who close jobs in WhatsApp often prefer native send. That alone is not a reason to abandon Sage if you need VAT filing in-product - you can use both.
Payroll, receipts and Copilot - Sage extras InvoiceAdept does not sell
InvoiceAdept | Sage Accounting Start | Sage Accounting Standard | Sage Accounting Plus | |
|---|---|---|---|---|
What you are buying | Invoicing + digital records | Accounting + VAT path + payroll | Accounting + CIS/suppliers/accruals positioning + payroll | Accounting + inventory / multi-currency + payroll |
After-intro price (excl VAT, 13 Sep 2026 public) | Pro £7.99 / Pro+ £12.99 | £20/mo | £43/mo | £59/mo |
Payroll included | None | Confirm live seat counts / extras on Sage | Confirm | Confirm |
Receipt / snap capture | Expenses on Pro / Pro+ - not Sage snap | Confirm inclusion on Start | Often marketed with snap allowances on Standard+ | Higher snap allowances as marketed |
Sage Copilot | Not a Sage product | Included as Sage markets it | Included | Included |
CIS on the invoice | Pro+ labour vs materials | Confirm - Start is not the CIS-positioned plan | Standard is the CIS-positioned plan. Confirm return features | Confirm |
Files VAT return | No | Markets calculate/submit. Confirm | Same family | Same family |
Files CIS300 / MTD ITSA / SA | No | Confirm VAT vs Income Tax vs CIS return | Same | Same |
Payroll seat numbers and snap extras change - verify on sage.com rather than relying on a blog table forever.
What the monthly numbers actually buy
Plan | After-intro monthly (excl VAT) | What it actually is | Files VAT / ITSA / CIS300? |
|---|---|---|---|
InvoiceAdept Free | £0 | 5 invoices, 1 user, email / PDF / portal | No |
InvoiceAdept Pro | £7.99 | Unlimited invoicing, WhatsApp, Stripe (no IA platform fee), ≤3 users | No |
InvoiceAdept Pro+ | £12.99 | Pro + CIS invoice lines, bank recon, cashflow, reports, audit log, unlimited users | No |
Sage Sole Trader (paid) | ~£7 | Non-VAT sole trader accounts; free plans underneath | MTD for Income Tax / SA as Sage markets - confirm. Not VAT Accounting ladder |
Sage Accounting Start | £20 | VAT-registered entry; Copilot; payroll positioning | VAT calculate/submit as marketed. Confirm. Not CIS-positioned plan |
Sage Accounting Standard | £43 | CIS / suppliers / accruals positioning | VAT as marketed. CIS return: confirm |
Sage Accounting Plus | £59 | Inventory / multi-currency positioning | VAT as marketed. Confirm CIS / ITSA |
Using both, without making a mess
Many trades keep InvoiceAdept as the customer-facing invoice book and Sage (or an accountant's pack) as the ledger. Rules of thumb:
Habit | Why |
|---|---|
One sales invoice number sequence | Do not raise the same job twice in two systems as two "originals" |
Export or copy totals into Sage | Accountant sees income; you still WhatsApp from InvoiceAdept |
Do not reverse-charge householders in either tool | Same legal rule |
CIS split on InvoiceAdept PDF; CIS300 elsewhere | Invoice ≠return |
Agree who presses Submit on VAT | Usually accountant or Sage - never assume InvoiceAdept did it |
Who should pick which
Situation | Better first move | Why |
|---|---|---|
You bill from the van, often in WhatsApp, accountant already files | InvoiceAdept Pro or Pro+ | Shopping for invoicing, not a second ledger |
VAT-registered, want VAT return + bank feed in one brand | Sage Accounting Start (or higher) | Markets calculate/submit VAT |
VAT-registered contractor needing CIS inside Sage | Sage Accounting Standard, then confirm CIS return | Standard is CIS/suppliers/accruals plan Sage points at |
Non-VAT sole trader for MTD for Income Tax | Sage Sole Trader (or other HMRC-recognised ITSA product) | That is Sage's SA / MTD ITSA messaging |
CIS subcontractor needing labour vs materials on the PDF | InvoiceAdept Pro+ | Invoice is the job; CIS300 is a different job - we do not file it |
Even one employee on PAYE | Sage Accounting (or payroll bureau) | InvoiceAdept is not payroll |
Five invoices a month to try a trades tool | InvoiceAdept Free | Way in |
Already invoice inside Sage, do not care about WhatsApp-native | Stay in Sage | Do not add a second invoice book for sport |
About to buy "MTD-ready invoicing" as only tool | Neither as only tool | Records ≠filing |
Feature depth: invoicing workflows
Workflow | InvoiceAdept | Sage Accounting |
|---|---|---|
Deposit invoices | Supported pattern - see deposit guides | Quotes/invoices as accounting product allows |
Stage / valuation style bills | Clear numbered stages | Same discipline inside Sage |
CIS labour/materials lines | Pro+ | Confirm CIS tools |
Domestic reverse charge wording | When eligible - see reverse charge guide | Accounting VAT tools - confirm |
Multi-user on site | Pro ≤3; Pro+ unlimited | Start 1 / Standard 3 / Plus unlimited (as marketed) |
Trade-specific templates blog | Large UK trades template library | General accounting templates |
Feature depth: accounting and compliance
Workflow | InvoiceAdept | Sage |
|---|---|---|
Full double-entry books | Not positioned as full Sage replacement | Core product |
VAT return prepare/submit | No | Markets yes on Accounting - confirm |
Payroll | No | Yes on Accounting plans - confirm seats |
Inventory / multi-currency | Not the product | Plus positioning |
Copilot / AI assistant | Not Sage Copilot | Sage Copilot as marketed |
Accountant collaboration | Export / share | Strong accountant ecosystem |
Pricing scenarios (illustrative monthly, excl VAT)
Illustrative only - promos ignored unless noted.
Scenario | InvoiceAdept pick | Sage pick | Notes |
|---|---|---|---|
Sole trader, 4 invoices/month, accountant files VAT | Free £0 | Optional Sole Trader or none | Do not pay for filing you already buy from accountant |
CIS subby, WhatsApp heavy, accountant files CIS300 | Pro+ £12.99 | Optional | Pro+ for PDF split; Sage only if you want books in Sage |
VAT-registered, wants in-product VAT submit, light WhatsApp | Optional Pro for send | Start £20+ | Sage is the filing path |
Small ltd with CIS suppliers + 2 staff | Pro+ for customer invoices | Standard/Plus + payroll | Often both |
Non-VAT sole trader facing MTD ITSA | Free/Pro for invoices | Sole Trader ~£7 | Sage Sole Trader for SA path messaging |
VAT registration threshold and product choice
UK VAT registration threshold used in InvoiceAdept guides: £90,000 rolling 12 months (confirm GOV.UK). The old £85,000 figure is historical/outdated. Crossing the threshold pushes many sole traders from Sole Trader-style products toward Accounting Start+. InvoiceAdept pricing does not change because you register for VAT - but your invoice must show VAT correctly when registered. InvoiceAdept does not decide when you must register.
Deemed CIS contractors (£3 million)
Deemed CIS contractor rules use more than £3 million of relevant construction spend - not £1 million. Soften; confirm GOV.UK. Neither InvoiceAdept nor a blog table decides deemed status. If you are deemed, your CIS return obligations sit with filing software / accountant - not with InvoiceAdept.
Bank Rate / late payment note (illustrative)
Between businesses, statutory late payment interest is typically Bank Rate + 8% where it applies. Illustrative for this guide (13 September 2026 context): Bank Rate 3.75% → 11.75%. Mark illustrative. Software choice does not create or remove the legal right - chase letters still need accurate figures.
What we are not claiming
That InvoiceAdept is a full Sage Accounting replacement for VAT filing, payroll or inventory.
That Sage is "bad" for trades - it is strong when you need books and filing.
That InvoiceAdept files CIS300, VAT, MTD or Self Assessment - it does not.
That any Sage plan always includes every CIS return feature without checking.
Fake uplift stats, invented city case studies, or unsourced "62% of trades switch" claims.
That WhatsApp-native send alone justifies abandoning a working Sage VAT setup.
Migration and dual-run checklist
Step | Habit |
|---|---|
Pick source of truth for invoice numbers | One sequence for customer-facing originals |
Export open invoices | Avoid double-chasing |
Map CIS jobs | Pro+ split vs Sage CIS tools |
Agree VAT submitter | Accountant / Sage - not InvoiceAdept |
Train WhatsApp send | Pro feature - do not invent it on Free forever |
Review after 30 days | Drop the tool you are not opening |
Free invoice generator CTA
Try a first draft in the free invoice generator before you pay anyone. Free is five invoices per month. If you need WhatsApp, move to Pro (£7.99). If you need CIS lines on the PDF, move to Pro+ (£12.99). If you need VAT submit in-product, evaluate Sage Accounting on sage.com the same week - do not assume InvoiceAdept will file it.
Mistakes when comparing InvoiceAdept and Sage
Mistake | Fix |
|---|---|
Buying Sage only because a Google ad said "MTD invoicing" | Separate records from filing |
Buying InvoiceAdept expecting CIS300 filing | We do not file CIS300 |
Ignoring promo vs after-intro Sage prices | Budget the £20/£43/£59 ladder |
Assuming Sole Trader £7 replaces Accounting VAT | Different product ladders |
Running two original invoice books forever | Dual-run with one customer-facing sequence |
Reverse-charging householders in either tool | Never |
Using outdated £85k VAT threshold | Use £90,000 (confirm GOV.UK) |
Saying deemed CIS is £1m | Use £3 million |
How InvoiceAdept describes itself honestly
InvoiceAdept is UK trades invoicing software from Tech Me Today Ltd (15917255), ICO ZB944663. Support [email protected]. No public phone for directory listings. Free / Pro £7.99 / Pro+ £12.99 excl VAT. Stripe fees apply; no InvoiceAdept platform fee. Does not file CIS300, VAT, MTD or SA. Does not decide CIS or VAT status.
How to read Sage marketing honestly
Sage is a large accounting brand. Accounting Start/Standard/Plus are VAT-registered ladders with payroll and Copilot messaging. Sole Trader is the non-VAT sole trader ladder with Self Assessment / MTD for Income Tax messaging. Standard is commonly pointed at CIS/suppliers/accruals. Always open the live pricing and feature comparison on sage.com - blog tables go stale.
Stripe fees versus subscription maths
Subscription price is not the only cash cost. Card fees matter when customers pay online.
Fee type | InvoiceAdept | Sage |
|---|---|---|
Software subscription | Free / £7.99 / £12.99 excl VAT | Start £20 / Standard £43 / Plus £59 after intro (13 Sep 2026 public) + Sole Trader ~£7 |
Card processing | Stripe; UK cards typically 1.5%+20p; no InvoiceAdept platform fee on top | Payment partner terms inside Sage - read their published rates; do not invent unpublished Sage card fees here |
Failed payment / chargeback | Stripe rules | Partner rules |
Bank transfer / BACS only | £0 card fee if customer pays to your account | Same if they pay outside card rails |
A firm taking £4,000 card-paid invoices in a month at 1.5%+20p per UK card payment will spend more on Stripe than on Pro (£7.99) in many cases. That is normal payment-industry cost, not an InvoiceAdept markup. Budget software and card fees separately when you compare Sage and InvoiceAdept.
Support, legal entity and trust signals
Signal | InvoiceAdept | Sage |
|---|---|---|
Legal entity | Tech Me Today Ltd, Companies House 15917255 | Sage Group / Sage UK corporate entities as published |
ICO | ZB944663 | Sage privacy / ICO registrations as published |
Support email | Sage support channels as published | |
Public phone for directories | None listed for InvoiceAdept directory listings | Sage published contact options vary by product |
UK trade focus | Built around UK trades invoicing templates and CIS invoice lines | Broad SMB accounting across many sectors |
Trust is not only brand size. For a CIS subcontractor who needs a readable PDF today, the right tool is the one that ships the invoice correctly - then export to whoever files.
Accountant collaboration patterns
Pattern | When it works |
|---|---|
InvoiceAdept + accountant files everything | Most WhatsApp-heavy trades with a bookkeeper already |
Sage Accounting only | You want bank, VAT, payroll and submit in one login |
InvoiceAdept + Sage dual-run | Customer-facing invoices in InvoiceAdept; ledger in Sage |
Sage Sole Trader only | Non-VAT sole trader on Sage's SA / MTD ITSA messaging |
Accountant-preferred stack | Follow your accountant - do not fight their export format for sport |
Ask your accountant which export they prefer (CSV, PDF pack, bank CSV) before you buy a second subscription "because SEO said so".
Security, audit log and multi-user habits
Topic | InvoiceAdept | Sage |
|---|---|---|
Multi-user | Free 1; Pro ≤3; Pro+ unlimited | Start 1; Standard 3; Plus unlimited (as commonly marketed 13 Sep 2026) |
Audit log | Pro+ positioning | Accounting audit trails as marketed |
Roles | Product roles for trades teams | Accounting user permissions |
Device use | Phone-first invoicing habit | Desktop-heavy bookkeeping habit for many users |
If three people on site need to raise invoices, count seats before you pick Free forever. If one bookkeeper and one director live in the ledger, Sage seat maths matters more than WhatsApp.
Construction-specific invoice content (where InvoiceAdept blogs help)
InvoiceAdept publishes long UK trade templates (paving, CIS, retention, deposits, reverse charge). That content is separate from Sage's product UI, but it matters when your invoice descriptions bounce QS queries. Sage will store whatever description you type; InvoiceAdept's SEO guides teach the CIS/VAT wording habits. Use the guides either way - including when your ledger is Sage.
When to stay on Free, upgrade, or leave
Signal | Action |
|---|---|
Under five invoices/month, testing | Stay InvoiceAdept Free |
WhatsApp is how customers pay attention | Upgrade Pro |
CIS labour/materials arguments with contractors | Upgrade Pro+ |
You need VAT submit yourself this quarter | Evaluate Sage Accounting Start+ the same week |
You hired PAYE staff | Sage payroll path or bureau - not InvoiceAdept |
You already love Sage invoices and never use WhatsApp | Stay Sage; skip a second book |
Dual-run is confusing the office | Pick one customer-facing sequence within 30 days |
Final comparison scorecard (qualitative, not a fake 9.7/10)
Criterion | InvoiceAdept edge | Sage edge | Tie / depends |
|---|---|---|---|
WhatsApp-native send | Yes | ||
CIS lines on trade PDF | Pro+ | Confirm Sage CIS tools | |
VAT return submit | Accounting plans | ||
Payroll | Accounting plans | ||
Lowest try-before-buy | Free five invoices | Sole Trader Free / trials | |
Full inventory / multi-currency | Plus | ||
UK trades template education | Blog library | Use blogs even on Sage | |
Filing CIS300 | Neither assumed - IA never; Sage confirm | Confirm Sage |
No invented star ratings. Your "winner" is the job you actually need done this month.
Detailed plan chooser for VAT-registered trades
If you are already VAT-registered (or about to cross the £90,000 rolling threshold), the chooser is usually:
1. Do you need in-product VAT submit this quarter? If yes, shortlist Sage Accounting Start or higher and confirm calculate/submit on the plan page. 2. Do you need WhatsApp-native send more than you need in-product submit? If yes, InvoiceAdept Pro, and keep your accountant filing VAT. 3. Do you need both? Dual-run with one customer-facing invoice sequence. 4. Do you need CIS on the PDF? InvoiceAdept Pro+. Do you need CIS tools inside the ledger? Sage Standard, then confirm return features. 5. Do you have PAYE staff? Sage payroll path or a bureau - InvoiceAdept will not run PAYE.
Write the answers down before you enter card details on either site. Promo pricing on Sage (90% off for six months) can make Start look like £2/month - budget the post-promo £20 so you are not surprised in month seven.
Detailed plan chooser for non-VAT sole traders
If you are not VAT-registered:
Need | Lean |
|---|---|
Simple invoices only | InvoiceAdept Free or Pro |
Sage brand + Self Assessment / MTD for Income Tax messaging | Sage Sole Trader (free or ~£7) |
Expect to hit £90,000 soon | Plan the move to Accounting Start before the quarter you register |
CIS subcontractor invoices to builders | InvoiceAdept Pro+ for PDF split; filing still elsewhere |
Sole Trader is not Accounting Start with a different price tag. Mixing the ladders in your head causes bad purchases.
Export, CSV and year-end habits
Habit | Why it matters |
|---|---|
Monthly export of invoices and payments | Accountant does not chase screenshots in March |
Keep deposit and stage invoices numbered | Retention and CIS queries need a trail |
Do not delete drafts that became finals under a new number without a note | Audit confusion |
Match bank receipts to invoice numbers | Both tools help; discipline is yours |
Confirm who submits VAT / CIS300 / SA | Never assume InvoiceAdept did |
Year-end is when thin processes break. If you dual-run InvoiceAdept and Sage, agree the export owner every month, not every April.
Mobile versus desktop reality for trades
Most InvoiceAdept users care about raising an invoice on a phone between jobs. Most Sage Accounting power users care about bank rules, VAT codes and payroll on a larger screen. Neither habit is wrong. If your day is 90% site time, test WhatsApp send on Pro before you buy a desktop-centric stack as your only tool. If your day is 90% office bookkeeping, test Sage bank feeds before you buy a phone invoicer as your only tool.
Common objections and straight answers
Objection | Straight answer |
|---|---|
"I need MTD so I must buy Sage" | You need digital records and a filing path. InvoiceAdept can be records; filing may be accountant or Sage. |
"InvoiceAdept is cheaper so it must be incomplete" | It deliberately does not file VAT/CIS300/SA. That is honesty, not a hidden missing button. |
"Sage is expensive so it must file everything on every plan" | Confirm CIS return and ITSA features per plan. Standard ≠every return type automatic. |
"I will decide later and run two originals" | Bad idea - pick a customer-facing sequence within 30 days. |
"Free is enough forever" | Fine until you need WhatsApp, CIS lines, or more than five invoices. |
Implementation week plan (either tool)
Day | Action |
|---|---|
Day 1 | List open quotes and who pays (householder vs contractor) |
Day 2 | Draft one householder invoice and one CIS-style contractor invoice |
Day 3 | Test send channel (email PDF vs WhatsApp on Pro) |
Day 4 | Confirm VAT registration status and threshold monitoring (£90,000) |
Day 5 | Speak to accountant about export + who submits returns |
Day 6 | Turn off the second "original" invoice book if dual-running |
Day 7 | Review fees: subscription + Stripe/payment partner |
This plan works whether you chose InvoiceAdept, Sage, or both.
FAQ
Does InvoiceAdept replace Sage Accounting?
No. InvoiceAdept is a trades invoicing front end with digital records. Sage Accounting is cloud accounting with VAT/payroll/filing paths. Many firms use InvoiceAdept for sending and Sage (or an accountant) for books and returns.
Does InvoiceAdept file VAT returns or MTD updates?
No. InvoiceAdept does not file VAT returns, Making Tax Digital updates, CIS300 or Self Assessment.
Does Sage file VAT returns?
Sage Accounting markets calculate and submit VAT on Accounting plans. Confirm on the exact plan you buy on sage.com.
What are InvoiceAdept prices in 2026?
Free £0 (five invoices/month); Pro £7.99 excl VAT; Pro+ £12.99 excl VAT. Stripe UK cards typically 1.5%+20p; no InvoiceAdept platform fee.
What are Sage Accounting prices (checked 13 September 2026)?
Public after-intro list prices appeared as Start £20, Standard £43, Plus £59 excl VAT, often with 90% off for 6 months. Sole Trader paid around £7. Confirm live on sage.com - promos change.
Which is better for CIS subcontractors?
If you need labour vs materials on the invoice PDF, InvoiceAdept Pro+. If you need CIS tools inside a full ledger / return path, evaluate Sage Accounting Standard and confirm CIS return features. InvoiceAdept does not file CIS300.
Which is better for WhatsApp invoicing?
InvoiceAdept Pro / Pro+ has native WhatsApp send. Sage is not WhatsApp-native as a headline trade feature.
Can I use both?
Yes - keep one customer-facing invoice sequence and let Sage/accountant hold the ledger and filings.
What VAT threshold does this guide use?
£90,000 rolling 12 months. £85,000 is outdated/historical. Confirm GOV.UK.
Does InvoiceAdept do payroll?
No. Use Sage Accounting payroll seats or a bureau.
Is Sage Sole Trader the same as Accounting Start?
No. Sole Trader targets non-VAT sole traders with SA / MTD ITSA messaging. Start is the VAT-registered Accounting entry.
Where do I try InvoiceAdept free?
https://invoiceadept.com/invoice-builder/
Related guides
About this guide
Last reviewed 13 September 2026. UPDATE_EXISTING on UUID f837750f-d813-4177-a427-5a233f434a3b - slug invoiceadept-vs-sage-uk unchanged. Sage public pricing re-checked 13 September 2026; always verify sage.com on purchase day. General information only. Tech Me Today Ltd 15917255, ICO ZB944663.
Bottom line
Pick InvoiceAdept when the pain is sending clear trade invoices (WhatsApp, deposits, CIS lines on the PDF). Pick Sage Accounting when the pain is books, VAT submit, payroll or inventory in one accounting brand. Pick Sage Sole Trader when you are non-VAT and want Sage's SA / MTD ITSA path. Do not expect InvoiceAdept to file CIS300, VAT, MTD or SA. Check live Sage prices on sage.com. Draft a first invoice in the free invoice generator.
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