Do I get additional tax benefits if I contribute to multiple ABLE accounts?

No, tax benefits for ABLE accounts and 529 plan accounts are aggregated for tax purposes by contributor, not by ABLE account or 529 plan. Anyone who contributes to one or more ABLE accounts or 529 plans with beneficiaries under the age of 21, can receive tax benefits up to the maximum allowable amount for that tax year. Contributions to an ABLE Account with a Beneficiary under the age of 21 are deductible for Oregon income tax purposes up to annual limits. For 2018, the State Tax Deduction is $4,750 for taxpayers filing jointly and $2,375 for single filers. Earnings on contributions of participants are exempt from state income taxation. There is no Oregon state income tax on Qualified Withdrawals or Rollovers.