Yes you are allow to charge an escrow servicing fee.
This is from the Analysis and Commentary:
X.A.: Escrow Requirements
Indiana does not expressly regulate issues involving escrow accounts.
XI.E.: Permissible Third-Party Fees
First Lien Mortgage Loans
There are generally no restrictions on a lender's ability to charge reasonable third-party fees on a first lien mortgage loan.
Second Lien Mortgage Loans
Under the Uniform Consumer Credit Code ("UCCC"), a lender may assess charges for official fees and taxes, property and liability insurance premiums, and bona fide and reasonable fees which are not for the purpose of evading the requirements and prohibitions of the UCCC for:
(1) title examination, abstract of title, title insurance, property surveys or similar purposes;
(2) fees for preparing deeds, mortgages, and reconveyance, settlement and similar documents (permissible only if the lender does not take a loan origination fee, see Section XI.E., above);
(3) notary and credit report fees;
(4) amounts required to be paid into escrow if such amounts are not otherwise required to be included in the loan finance charge; and
(5) appraisal fees.
See Ind. Code §24-4.5-3-202. Charges for other benefits conferred on the borrower may also be assessed, if such charges are approved by the Department of Financial Institutions. See id.
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The opinions expressed are mine and they are not to be taken as legal advice.