Mutual Fund Calculator

The return is an effective annual percentage, converted to a constant monthly growth factor. Deposits are added at the end of completed months. A final fractional month grows the existing balance but adds no partial deposit. Taxes, withdrawals and changing returns are excluded.

Enter a gross return before expenses; an already net-of-fees return would count fees twice. After each month's growth, the model deducts annual expense ratio / 12 from the balance before adding the new deposit. A fractional month compounds the retained-fee factor. This is a monthly approximation of expenses paid from fund assets; it excludes sales loads and transaction fees. Fees shown are actual modeled deductions, not the total effect of lost compounding.