Boat-auction bid worksheet
Yenra | Updated September 13, 2026
Article: https://yenra.com/boat-auctions/

INSTRUCTIONS
Use current lot terms and one currency. All sample numbers below are fictional. This is arithmetic and decision support, not a boat valuation, title opinion or tax determination.

Auction / date / lot:
Terms version and amendments:
Format / reserve / seller acceptance / bid increments:
Boat and engine identifiers:
Seller authority and transfer documents:
Inspection scope / exclusions / findings:
Included trailer and equipment:
Payment deadline and approved method:
Responsibility transfer / insurance:
Removal deadline / lifting access / transport quote:

COST INPUTS (currency: ______)
Total budget B:
Inspection:
Transport and lifting:
Other fixed charges:
Immediate work with source/date:
Uncertainty reserve:
Total fixed costs and reserve F:
Buyer's premium p (decimal):
Tax t (decimal):
Tax base confirmed by / date:
Additional tiers or fees requiring a different formula:

SIMPLIFIED FORMULA
Only if premium is p times hammer bid and tax is t times
(hammer bid + premium):
Hmax = (B - F) / ((1 + p) * (1 + t))
Round DOWN to an allowed bid increment. Recheck:
Total = H + (H*p) + ((H + H*p)*t) + F.
Change the calculation for the actual fee and tax rules.

FICTIONAL CHECK
B = 15000; F = 4500; p = 0.10; t = 0.06.
F = transport 1000 + other 500 + immediate work 2000 + reserve 1000.
Hmax = 10500 / 1.166 = approximately 9005.14.
At hypothetical 500 increments: H = 9000.
9000 + 900 + 594 + 4500 = 14994.

My documented ceiling:
Higher-repair-cost scenario:
Unresolved questions / evidence needed:
Decision and reasons:
Handover documents / condition photos / removal arrangements:


Source context: Follow the article links to the relevant manuals, operator terms and local authorities. This worksheet organizes your findings; record the source and date of each consequential answer.