GCC 2015 vs GCC 2025: What Changes for Payment

The SAICE General Conditions of Contract (GCC) runs much of South African civil work. In 2025 it got its first new edition since 2015. For a civil contractor, this touches cash. SAICE says the GCC 2025 launch brought 129 key changes. Several of them change how you give notice, how you claim and what you can do when payment is late. If your commercial team keeps its 2015 habits on a 2025 contract, you risk losing money you were owed.

This guide explains what changed between GCC 2015 and GCC 2025 where it touches your money. It covers instructions and variations, claims, late payment and the payment certificate. It is a working summary for contracts managers and quantity surveyors (QSs). It is not legal advice. Before you rely on a clause, check its exact wording in the official SAICE GCC 2025 document and your contract data.

Why Does GCC 2025 Matter to Your Cash?

Most of the GCC 2025 changes land on the monthly commercial admin your QS already does. Instructions must now be in writing, claims run on two separate periods and late payment rights are clearer. Each change rewards a contractor with clean, dated records and punishes one that relies on memory.

SAICE describes the new edition as simpler, clearer and better ordered. Clauses have been reworded, renumbered and grouped in a more logical way. The aim is fewer disputes and less room for argument.

In practice, the contract expects more discipline from you. Teams with clean, dated records will gain. Teams that run on memory will lose claims they could have won.

Three areas matter most for payment:

how an instruction, and so a variation, is given;
how a claim is notified and then detailed;
what you can do when the employer pays late.

Each one changes a habit that site and commercial teams have carried for ten years.

What Changed Between GCC 2015 and GCC 2025?

For payment, the main changes are written-only instructions, separate periods for the notice of claim and the detailed claim, a new early warning clause, clearer rights on late payment and a new first step for disputes. The table below sets them out in plain terms. Use it as a checklist, then confirm each point against the official text and your contract data.

Area	GCC 2015	GCC 2025
Instructions and variations	Less strict on the form of an instruction	Instructions can only be given in writing, so a variation needs a written instruction
Claims	Notice and claim handled under one set of rules	The period for the notice of claim and the period for the detailed claim are now different
Time bars	Late notice could bar the claim	Time bars can be challenged, but you should not rely on it
Early warning	No formal early warning process	A new early warning clause: each party warns the other of issues that may affect time or cost
Late payment	Rights to suspend for non-payment	Clearer rights to suspend or terminate for non-payment, and higher interest on late payment (reported at the prescribed rate plus 3%)
Completion	Due completion date	Due practical completion date
Disputes	Claims and disputes procedure, then adjudication, arbitration or court	Facilitated amicable settlement is the first step, with more weight on dispute boards

The pattern is simple. The new contract wants everything in writing, on time and backed by evidence. That is good news for a disciplined contractor. It is expensive for a loose one.

How Does GCC 2025 Change Variations?

The change most likely to cost you money is the rule on instructions: under GCC 2025, instructions can only be given in writing. A variation needs an instruction, so an oral request on site is no longer a sound basis for being paid. Ask for the instruction in writing before the work starts, every time.

A variation is a change to the works ordered by the employer’s agent (the engineer or other person named in the contract data).

For your site team, treat this as a hard rule. Do not build a change on a verbal instruction and sort the paperwork out later. If no written instruction exists, the work may not count as a variation. That means work you may not be paid for.

When the site agent gets a verbal request, the safe step is to ask for it in writing before the work starts. Log the request, the date and the person who gave it. If the change also delays the works, keep the delay record next to the instruction. You will need both to support any extension of time claim under the contract.

How Does GCC 2025 Change Claim Deadlines?

GCC 2025 sets one period for the notice of claim and another for the detailed claim, so every event now has two deadlines to diarise. The exact periods are in the relevant clause of your contract. Time bars can be challenged under the new edition, but a late notice is still the fastest way to lose a good claim.

You first give written notice that you intend to claim. Later, within a second period, you submit the detailed, priced claim. Check both periods for each contract.

Do not plan around a challenge to a time bar. It costs time and money, and you may still lose.

The practical answer has not changed. Notify early and in writing. Build the detailed claim on records you made at the time. A claim pieced together from memory months later was always weak. Under GCC 2025, it is also more likely to be late.

A simple test. Take the last variation or delay event on your current contract. Check two dates: the day you gave written notice, and the day the detailed claim was due. If your records cannot answer both, the new timelines will catch you out.

What Are Your Rights on Late Payment Under GCC 2025?

GCC 2025 gives contractors clearer rights to suspend or terminate for non-payment, and launch reports put interest on late payment at the prescribed rate plus 3%. These rights only help if you can prove when each certificate was due and when it was paid. Follow the notice steps in the contract exactly.

On public infrastructure work, late payment is often the real risk, so these rights matter. Under GCC 2015, interest on late payment ran at the prime overdraft rate of the contractor’s bank.

Suspension and termination follow notice steps and waiting periods set in the contract. Interest depends on when the payment was due. For your QS, this means the payment record must be clean and current. You need to show when each certificate was due, when it was paid and what was still owed.

Before you suspend or terminate, follow the exact notice steps in the contract. Get legal advice if you are unsure. A notice that misses a step can weaken your position.

Still tracking certificates, variations and claim dates in spreadsheets? Sakha keeps measurement and progress, payment certificates and contract admin, the site diary and project documents in one cloud software built for South African civil contractors: see a product demo.

What Does a Clean Payment Certificate Contain?

Under either edition, a clean payment certificate shows measured work, variations, price adjustment and materials on site, less retention and previous certificates, with a document behind every line. The employer’s agent certifies what you can prove. Everything else waits for the next month or turns into a dispute. Our guide to the GCC payment certificate process covers the monthly cycle and its time limits.

The example below shows a typical interim certificate on a remeasured civil contract. The figures are illustrative. Amounts exclude VAT unless stated. Security, including whether retention applies, its rate and its limit, is as set in the contract data.

Line	What it needs behind it	Illustrative amount
Measured work to date	Quantities remeasured by chainage and section, agreed with the resident engineer	R12,400,000
Variations to date	A written instruction for each item, priced at agreed or determined rates	R860,000
Contract price adjustment	The adjustment formula and indices set in the contract data	R310,000
Materials on site	Delivery notes and proof of ownership, where the contract allows payment	R450,000
Gross value to date	Sum of the four lines above	R14,020,000
Less retention (10%, illustrative)	Rate and limit from the contract data	R1,402,000
Less previous certificates	Net amounts already certified	R9,750,000
Amount due this certificate	Gross value less retention less previous certificates	R2,868,000
VAT at 15%	A valid tax invoice	R430,200
Total payable incl. VAT	Amount due plus VAT	R3,298,200

Look at the variations line. Under old habits, a team might have carried an oral instruction in that R860,000 and argued about it later. Under GCC 2025, take out any item that has no written instruction. Put it back once the instruction exists.

Dates need the same care. Two dates drive your interest and suspension rights: the day the payment was due and the day it was paid. Record both for every certificate.

Retention needs the same care too. Track the amount held on every certificate and the limit in the contract data. Also track the release points, usually at practical completion and at the end of the defects period. On a long public contract, retention that nobody tracks is often released late, or not at all.

What to Do Before Your Next Certificate

Moving from GCC 2015 habits to GCC 2025 is mostly about discipline your team can start now. Confirm which edition governs each contract, stop acting on oral instructions, diarise both claim periods and record the due and paid date of every certificate. None of this needs new software to start, only a team that writes things down on the day.

Use this short checklist:

Check which edition governs each contract. Do not assume. Read the contract data.
Stop acting on oral instructions. Ask for a written instruction before the work starts.
Use early warnings. Warn the employer’s agent in writing as soon as you see a time or cost risk.
Diarise the two claim periods separately for every event: first the notice, then the detailed claim.
Record the due date and the paid date of every certificate.
Keep a live, dated record of instructions, claims, certificates and payments. Do not rebuild it at month end.
Check every clause you rely on against the official SAICE GCC 2025 document.

Civil software built for South African contracts, such as Sakha, keeps this commercial record in one place. The dates and evidence the new timelines demand are captured as the work happens. The contract sets the rules. Your records let you use them.

Frequently Asked Questions

What is GCC 2025?

GCC 2025 is the fourth edition of the SAICE General Conditions of Contract for Construction Works. SAICE launched it in 2025 as the first new edition since GCC 2015. It is a standard contract for civil and infrastructure work in South Africa, and the CIDB endorses it.

What is the biggest change from GCC 2015 for payment?

The rule on instructions. Under GCC 2025, instructions can only be given in writing. So a variation needs a written instruction before you can count on being paid for it. The edition also splits the claim periods and gives clearer rights on late payment.

Does GCC 2025 change claim deadlines?

Yes. The period for the notice of claim and the period for the detailed claim are now different. Diarise both for every event. Time bars can be challenged, but do not rely on that. Notify early and in writing.

What are the new rights on late payment?

GCC 2025 gives clearer rights to suspend the works or terminate for non-payment. Launch reports also put interest on late payment at the prescribed rate plus 3%. The exact notice steps and waiting periods are in the contract, so check them before you act.

Is this legal advice?

No. This is a working summary for contracts and commercial teams. Always check the exact wording against the official SAICE GCC 2025 document and your contract data. Take legal advice where needed.

The Bottom Line

GCC 2025 rewards what good civil contractors already value: everything in writing, on time and backed by evidence. Oral instructions are out. The claim clock runs in two parts. Late payment gives you clearer rights, but only if your dates and certificates are clean. The contractors who come out ahead will keep a commercial record current enough to act on. That means the day an instruction is given or a payment falls due, not a month later.

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