Terms from a preset
Pick Oman 2019, FIDIC 1999, UAE, Saudi or your own. It fills retention and its limit, the advance and how it is repaid, materials on site, payment days and how VAT treats retention. Change any of them.
Construction
Payment certificates that add up, from the BOQ to the bank
Contracts, bills of quantities, monthly payment certificates, advances, retention, variations and subcontractors, posted straight into your books with VAT, ageing and project profit intact. Built on the Oman standard contract and FIDIC, with UAE and Saudi presets.
$20 / mo · on every plan
Professional · $20 for each company that uses it
Project costing · comes with it
Certified 28 Nov 2026
Pay by 27 Jan 2027
Oman standard contract 2019
| Line · to date, OMR | Applied | Certified |
|---|---|---|
| (a) Work executed, including variations | 552,000.000 | 540,000.000 |
| (e) Materials on site, 80% of their value | 24,000.000 | 24,000.000 |
| (g) Other additions | 0.000 | 0.000 |
| (c) Less retention, 5% up to 5% of the contract | -27,600.000 | -27,000.000 |
| (d) Advance payment | 120,000.000 | 120,000.000 |
| Less advance repaid, 10% of each certificate | -57,350.000 | -56,150.000 |
| Less deductions: power and water | -2,500.000 | -2,500.000 |
| (h) Less certified before: advances and IPCs 1 to 6 | -520,500.000 | -520,500.000 |
| Due this certificate | 88,050.000 | 77,850.000 |
| VAT 5% on 84,850.000 | 4,242.500 | |
| Total payable | 82,092.500 |
Posts a sales invoice, a journal and a customer JV in one step
Post invoice
One contract, everything on it
Set the contract up once, and it runs the maths
Every contract is a project in your books. Its terms, quantities and guarantees sit in one place, and every certificate reads from them.
Bill of quantities
Sections, items, units, quantities and rates, each with a cost head and a budget. Import and export it with Excel. Once work is certified, quantities and rates change only through variations.
Variation orders
New items, quantity and rate changes, and omissions, each with its effect on budget. Approving one updates the BOQ and the revised contract value in one step. Certified quantities can't be cut.
Bank guarantees
Performance, advance, retention and tender guarantees with bank, amount and expiry. Ones expiring within 30 days are flagged, and a certificate can wait for the performance bond.
Interim payment certificates
The engineer's figures become the invoice, without a spreadsheet
Enter quantities measured to date and the certificate works itself out in the standard order. It shows what you applied for beside what the engineer certified, and the difference is visible line by line.
- Cumulative: each certificate bills only the change since the last one, so a correction simply flows into the next
- Retention stops at its limit; the advance is repaid at its rate, and in full once the works are taken over
- Choose whether VAT on retention is charged with each certificate or invoiced when it is released
- A certified certificate keeps the BOQ it was certified against. A later variation can't re-price it
- Made a mistake? Undo the latest posting in one click, as long as no receipt has been applied to it yet
What posting IPC 7 createsall tagged to project C-014
Work and materials since IPC 6, less the advance repaid, plus 5% VATshows in your VAT return, ageing and customer statement
SIAdvance repaid and materials on site moved to the right accountscontract revenue only counts work actually done
JVRetention held and back-chargesretention receivable shown on its own, both ways
CJVThe client owes77,850.000 + VAT
Subcontractors
The same certificate logic, on the paying side
Each subcontract has its own bill, retention, advance and VAT. Copy its lines back-to-back from your BOQ at a percentage of your own rate, then certify their work the way the client certifies yours.
- Posting creates their purchase invoice with input VAT and their invoice number, plus the journal and supplier JV
- Retention you hold and the advance you paid are tracked per subcontractor and recovered automatically
- Back-charges reduce what you owe them and what the job cost
- Retention is released once their subcontract is marked complete, never more than you hold
SC-03 · Electrical workscopied from the BOQ at 85%
| BOQ item | Qty | Main rate | Their rate |
|---|---|---|---|
| E-104 · Cable tray, 300 mmSection E · m | 420 | 14.000 | 11.900 |
| E-112 · Distribution boardSection E · each | 18 | 640.000 | 544.000 |
| E-130 · Lighting pointsSection E · each | 310 | 38.000 | 32.300 |
Subcontract value24,803.000
Cost control
Budget, committed and actual, by cost head
Budgets come from the BOQ. Committed is what you have ordered or subcontracted but not yet been billed for. Actual is every cost posted to the contract, including site payroll. The moment a head will run over, it turns red.
| Cost head | Budget | Committed | Actual | Left in budget | Used |
|---|---|---|---|---|---|
| Materialsgoods bought or issued for the contract | 420,000 | 38,500 | 301,200 | 80,300 | |
| Labourpayroll allocated to the contract | 180,000 | — | 131,400 | 48,600 | |
| Subcontractcertified subcontractor work | 260,000 | 64,000 | 205,700 | -9,700 | |
| Plantequipment costs | 90,000 | 6,000 | 52,300 | 31,700 | |
| Overheadseverything else on the project | 60,000 | — | 41,800 | 18,200 | |
| Total | 1,010,000 | 108,500 | 732,400 | 169,100 |
Link open purchase orders to a contract and they count as committed until they are received or invoiced. Each posted cost lands in a head automatically, and you can move it to another.
Registers
What is held, owed and about to expire, on one page
The registers bring every contract together, so the money that slips through spreadsheets stays in sight.
- Every posted certificate with what the client still owes and how many days late it is
- Retention both ways: held by your clients and held from your subcontractors, with when each part falls due
- Active bank guarantees, soonest expiry first
- On the phone dashboard, each contract shows percent certified, what the client owes and retention held
Certificates owed
IPC 5 · C-009 Warehouse extensionOMR 31,200.000 still owed
12 days lateRetention
Held by client · C-014 Villa compoundOMR 27,000.000 · half due at taking-over
receivableHeld from SC-03 · Electrical worksOMR 1,180.000 · due when complete
payableGuarantees
Performance bond · C-014OMR 120,000.000
expires in 18 days
Part of your books
It uses what you already have
Construction adds the contract layer. Everything else is the same accounting your team already uses.
Project costing
Included with Construction. Every contract is a project, so its profit and loss is always one click away.
Payroll
Salaries allocated to a contract count as its labour cost. About payroll
Purchase orders
Orders for site materials count as committed cost until they arrive and are billed.
Paperless
Attach the signed certificate, the guarantee or the variation letter to the document it belongs to.
Plans & price
$20 a month, on any plan
Buy it under Admin › Modules or Billing, then a company admin switches it on. Project costing switches on with it.
Starter
+ $20 / mo
add-on, billed with your plan
Business
+ $20 / mo
add-on, billed with your plan
Enterprise
+ $20 / mo
covers every company in the group
Professional
+ $20 / mo
for each company that switches it on
Every plan starts with a 14-day free trial, no card needed. Compare all plans
Construction questions
Frequently asked
The certificate follows the Oman Ministry of Finance standard contract (May 2019), and there are presets for FIDIC 1999, UAE practice and Saudi Arabia. A preset only fills in the terms. You can set your own retention, advance, materials and payment terms on any contract, including zero retention.
Each contract chooses. Either VAT is charged on the full certified value with each certificate, as in Saudi Arabia, or the retention is invoiced with its VAT when it is released, as the UAE e-invoicing guide describes. Subcontracts carry the same choice.
Certificates are cumulative, so the usual fix is simply the next certificate. If you need to take the latest one back, Undo posting cancels all its vouchers together and returns it to Certified. That works while no receipt has been applied to it and the contract isn't closed.
On Professional you pay $20 a month for each company that switches Construction on, and the screen tells you before you switch. On Starter, Business and Enterprise one $20 add-on covers the subscription.
A few things, plainly. A company that sends e-invoices through Accuracy can't post certificates yet. Contracts are in your base currency only. Printing is in English only, with no Arabic layout. And there is no approval workflow on certificates; the engineer's certification is the approval.
Certify your next IPC in Accuracy
Start a 14-day free trial, add Construction, and set up one live contract with its BOQ. The first certificate will show you the rest.