What standards does WIN25 jtaeuraaudit work to?

Every statutory audit follows the International Standards on Auditing and reports against the applicable framework, usually IFRS or local GAAP. Our quality system is reviewed by external peers so the same rigour applies to every file.

How long does a typical audit take?

For a medium sized company, fieldwork usually runs about three weeks once records are ready, with planning before that and clearance afterward. We agree the full timeline at kickoff and hold to it.

Can you help beyond the annual audit?

Yes. Alongside the statutory audit we cover internal audit, tax advisory, risk and controls work, and transaction due diligence, all under the same partner relationship.

Are you independent from the companies you audit?

Independence is not negotiable. We apply strict limits on the services we provide to an audit client and screen every engagement for conflicts before we accept it.

How do we get started?

Book a short consultation through the form on this page. We scope the work and send a fixed fee proposal, usually within three business days.

WIN25 jtaeuraaudit | Independent Audit, Assurance & Advisory Firm

Financial statements your board can stand behind.

WIN25 jtaeuraaudit is an independent firm of chartered auditors and advisors. We look closely at the numbers that run your business, tighten the controls around them, and give the people who depend on your reporting a reason to trust every figure.

18+Years in practice

640+Audits delivered

12Industries served

Financial Statement Audit

An independent look at your accounts against ISA and IFRS, ending in an opinion that lenders, regulators and shareholders can lean on with confidence.

Discuss an audit

Assurance & Review

Limited assurance, agreed upon procedures and special purpose reviews for the moments you need credibility without commissioning a full statutory audit.

Learn more

Internal Audit

Internal audit we run for you or alongside your own team, testing how your processes really behave and turning what we find into fixes you can act on.

See the process

Tax Advisory

Compliance, planning and dispute support that keeps you on the right side of the rules while making sure you never hand over a rupiah more than you owe.

Talk to a specialist

Risk & Controls Advisory

Enterprise risk assessments, SOX style control design and fraud reviews that catch weak spots long before they ever reach your ledger.

Assess your risk

Transaction Support

Financial due diligence and quality of earnings analysis that let buyers, sellers and investors read a deal clearly before anyone signs.

Plan a deal review

A steady audit, without the surprises

We plan around your calendar, keep talking to you the whole way through, and give you a partner who actually answers the phone from kickoff to sign off. No black boxes, no scramble in the final week.

Scoping and risk assessment

We map your business, systems and material risks so every hour of fieldwork lands where it truly matters.

Fieldwork and testing

Substantive testing and control walkthroughs run on a shared timeline, and anything we spot is raised the same day we find it.

Review and clearance

A separate partner challenges our own conclusions before a single page reaches your desk.

Reporting and insight

You receive a clean opinion plus a management letter of practical improvements, ranked by what will move the needle first.

Independence, judgement and a real partnership

WIN25 jtaeuraaudit began with a handful of chartered accountants who felt clients deserved senior attention rather than a revolving door of juniors. Almost two decades on, that idea still runs the firm. Every engagement is led by a partner who puts their own name on the work.

We are large enough to handle complex groups and small enough that you always know exactly who is on your file. Our people hold CA, CPA and CISA credentials, and our quality system is reviewed by external peers so that our opinion means precisely what it says.