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Post-implementation review

Looking back at whether a project or decision actually delivered.

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

What it means

A post-implementation review compares the outcome of a project or investment against what was expected, some months after completion.

Why it matters

Without it, the case made for an investment is never tested, and the same optimistic assumptions get used again.

What it looks like in practice

Compare against the original business case: the benefits claimed, the costs forecast, and the timescale. Record what would be done differently.\n\nDo it late enough for benefits to have appeared — usually six to twelve months.

What to watch out for

Reviews that become blame exercises. The purpose is better future estimates, and a blameless review produces honest information.

Where to get proper advice

Your own figures.

Where to read more

Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

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