Sage Accounting Review for Builders UK (2026)
For a UK builder, accounting software lives or dies on one thing: whether it handles the Construction Industry Scheme properly. So rather than repeat Sage’s feature list, we took out a real Standard-tier trial, switched CIS on, set up a subcontractor and paid them through Sage to see the deduction maths for ourselves. Here is what a builder paying subbies needs to know.
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Standard plan from £4.30/month for the first 6 months (then £43/month, excl. VAT), or a 30-day free trial with card details required upfront.
How CIS Works in Sage, Tested
Subcontractor Setup With the Real HMRC Rates
Turning CIS on adds a CIS tab to each supplier, with the three HMRC deduction rates (Gross 0%, Standard 20%, Higher 30%), a field for the verification number, and a direct “Verify Details at HMRC” link, so checking a new subbie’s status sits in the same place you set them up.
Labour and Materials Kept Apart Automatically
Sage creates two ledger accounts when you activate CIS, CIS Labour Expense and CIS Materials Purchased. That matters on building jobs, where a subbie’s invoice often mixes labour with materials they have supplied: the CIS deduction only applies to the labour, and Sage enforces that split at account level rather than leaving it to you to remember.
The deduction we ran: a subcontractor on the Standard 20% rate, and a purchase invoice for £600 of labour.
Sage calculated it automatically: £600 labour, minus a £120 CIS deduction, leaving £480 payable, with the maths shown on the invoice itself and a linked explainer on how it affects your accounts.
One warning before you click: activating CIS is a one-way switch. Sage says so plainly at the confirmation step, and it cannot be turned off afterwards, so only switch it on once you know you need it.
The Rest of the Builder Workflow
Quotes and Estimates Are Different Documents
Sage treats a Quote (firm price) and an Estimate (price may change) as separate document types. For building work, where you often give a rough figure before a proper survey, that distinction is more useful than in most trades. Accepting a quote converts it straight into a matching invoice with nothing re-typed.
Profit on Every Line
Once a cost is set, a Profit field shows on every quote and invoice line, so an underpriced extension or knock-through shows up before the quote goes out, not after the job is finished.
VAT Returns From Inside Sage
Switching the VAT scheme to Standard reveals a Making Tax Digital setup with quarterly submissions, a VAT number field and an HMRC User ID field, so returns can be filed from Sage directly. We checked the setup screens only and did not file a real return.
Worth Knowing Before You Sign Up
- The free trial needs a card. The genuine 30-day trial is £0 today but asks for payment details first and bills the full monthly rate afterwards unless you cancel. The heavily advertised “90% off” deal is a discounted paid plan from day one, not a trial.
- Two-factor authentication is compulsory. You need your phone to set it up before you can open Accounting. A good security default, but a slower start.
- A repeating address prompt. During testing it asked us to confirm the company trading address on every new quote and invoice.
- CIS is on the Standard tier and above, so the cheapest plan will not cover a builder paying subbies.
Honest Pros and Cons for Builders
| Pros | Cons |
|---|---|
| CIS deductions calculated correctly, tested with a real invoice | Activating CIS cannot be undone |
| Labour and materials split enforced for CIS | Free trial needs card details upfront |
| HMRC verification link built into subcontractor setup | Mandatory 2FA slows the first setup |
| Separate Quote and Estimate documents | Repeating address confirmation during testing |
| UK company, billed in pounds | It is accounting software, not job scheduling |
Who Is Sage Best Suited To?
Verdict, Is Sage Accounting Worth It for Builders?
For a builder paying subcontractors, Sage does the part that matters most properly: we watched it take 20% off a £600 labour invoice, leave £480 payable, and keep labour and materials in separate CIS accounts without any manual maths. The Quote and Estimate split and line-level profit are useful extras for building work. The friction is all at the start, a card for the trial, compulsory 2FA and an irreversible CIS switch, but none of it outweighs getting CIS right for a firm that deals with it every month.
Standard plan (the one with CIS) from £4.30/month for the first 6 months, then £43/month excl. VAT.
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