Have a question, found a bug, or want to share feedback? We'd love to hear from you. We aim to respond within 2 business days.
Whether you have a question about our calculators, spotted a bug, or simply want to share how OverpayCalc has helped you — we want to hear from you.
Questions about how our calculators work, currency support, or general feedback.
Found an issue with a calculation result or something that isn't working correctly? Let us know.
Have an idea for a new calculator or feature? We're always looking to improve our tools.
For data protection enquiries or to exercise your rights, please mention this in your message subject.
Response time: We aim to reply within 2 business days. We do not offer phone or live chat support.
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Quick answers to common questions before you reach out.
Yes — completely free, forever. No sign-up, no premium tiers, no hidden fees. Every tool on OverpayCalc is available to everyone at no cost.
No. All calculations happen directly in your browser. Your financial inputs are never sent to our servers or stored anywhere.
Our calculators use standard amortisation formulas. Lenders may use different rounding methods or daily versus monthly interest accrual, leading to minor variations.
Absolutely. Use the contact form above and select "Feature Suggestion". We review all requests and prioritise the most requested tools.