Financing for sustainable development

The modernisation of official development assistance (ODA)


 …/ DCD / _Styles / 00: T4 backOffice (TinyMCE) - 2019
 …/ DCD / _Styles / 02 : DCD documentType (DT) styles 2019

The Development Assistance Committee (DAC) continues modernising its statistical system. This work addresses the increasing significance of non-DAC providers and philanthropic foundations, the diversification of financial instruments, and the growing convergence of development cooperation policy objectives with areas like migration and security. The goal is to accurately capture these changes while ensuring the statistical system remains relevant and reflective of evolving landscape of development co-operation.

The modernisation of Official Development Assistance (ODA)

In the process, the DAC took a series of decisions at its High Level Meetings (HLM) in 2014, 2016 and 2017 with regard to the measurement of concessional loans to the public sector, private sector instruments (PSI), peace and security expenditures, and in-donor refugee costs.

  • Over 2016-2018, a number of clarifications of eligibility rules for peace and security as well as in-donor refugee costs became effective.
  • In 2019, the grant equivalent system became the standard for measuring ODA. Although data on the grant equivalent measure were collected and published during a transition period from 2016 to 2018, in 2019 it became the standard: in April that year, ODA headline figures applying this new standard were published for the first time, when the preliminary 2018 ODA statistics were released. Data on actual flows (i.e. disbursements and loan repayments) continue to be collected and published to ensure transparency.
  • In 2020, the DAC reached a consensus on the treatment of debt relief.
  • In 2023, the DAC agreed on revised methods for treating PSI in ODA, becoming effective in reporting in 2024 on ODA in 2023 (with possible transition periods of one or two years).
The DAC continues to adjust its statistical systems to new realities and needs. Work is also ongoing in relation to the methodology for updating the DAC List of ODA Recipients (e.g. on reinstating countries or territories on the List in case of catastrophic humanitarian crisis) and the methods for measuring the SDG focus of development co-operation (purpose codes, policy markers) in view of keeping the statistical classifications relevant and fit-for-purpose with the 2030 agenda. 

The new statistical framework:

  • measures ODA loans more accurately and credibly, ensuring comparability of data across providers,
  • encourages more and better allocation of concessional resources to implement the SDGs,
  • promotes greater transparency and heightened accountability, helping to ensure that ODA goes where it is most needed and has the greatest development impact.

See Frequently Asked Questions about the modernisation of ODA.

Clarification of eligibility rules

Ambiguities in reporting rules led to inconsistent interpretation and reporting by DAC members on both peace and security-related expenditures, and on in-donor refugee costs.

Peace and security efforts

In 2016, the DAC agreed on updated rules for the eligibility of peace and security expenditures. This was to better recognise the marginal, but actual developmental role that military actors sometimes play, notably in conflict situations, while clearly delineating it from their main peace and security function.

  • The changes clarify ambiguities to ensure uniform, consistent statistical reporting, but also to approve the ODA-eligibility of development-related training for partner country military staff in limited topics.

Since then, the DAC has:

  • implemented the updated ODA rules on peace and security in the reporting,
  • issued a revised ODA Casebook on Conflict, Peace and Security Activities, and
  • complemented the technical review of the ODA coefficient applied to UN peacekeeping operations.

Read more

In-Donor refugee costs

In 2017, the DAC agreed to clarify the reporting directives for assessing what may be included or not in ODA – and provide its members with a blueprint to use when accounting for the costs of assisting refugees in donor countries.

The changes improve the consistency, comparability and transparency of DAC members reporting of ODA-eligible in-donor refugee costs.

Introducing the “Grant equivalent”

A fairer method to record ODA

OECD Official Development Assistance (ODA) Statistics: Introducing the grant equivalent

ODA can take the form of (i) grants, where financial resources are provided to developing countries free of interest and with no provision for repayment, or (ii) soft loans to governments or multilateral organisations, which have to be repaid with interest, albeit at a significantly lower rate than if developing countries borrowed from commercial banks, or (iii) private sector instruments.

Until recently, grants and loans were valued in the same way: by recording the flows of cash that were granted, or the face value of loans that were lent to developing countries, deducting any repayments on the loans. This “cash basis” or “flow basis” method, has been used to produce ODA headline figures until 2018 (reporting on 2017 ODA spending).

The method was simple, but it did not reflect actual efforts by donor countries: a grant represents a bigger effort than a loan; and a loan with a very low interest rate and a long repayment period represents a bigger effort than a loan with a higher interest rate and a short repayment period.

That is why DAC members decided, at their 2014 High-Level Meeting, to introduce a new way of measuring aid loans, so as to better reflect the actual effort by donor countries – and their taxpayers: only the “grant equivalent” of loans would now be recorded as ODA. The more generous the loan, the higher the ODA value.

Instead of recording the actual flows of cash between lender and borrower, the headline measure of ODA is based on the loans’ “grant equivalents” of loans and other instruments.

This provides:

  • a more realistic comparison of loans and grants
  • stronger incentives to use grants and highly concessional loans, which will continue to play a key role in mobilising resources to support the Sustainable Development Goals (SDGs).

Making grants, loans and other instruments comparable: calculating the grant element and the grant equivalent

Money today is worth more than the prospect of the same amount in future.  Any comparison of money now and in the future must take account of the rate at which money loses value. A sum of money in the future can be reduced to its value today by applying a discount rate. A discount rate is an interest rate applied in reverse: it applies tomorrow’s value to today’s money. Grant element calculations use discount rates to reduce the expected future reflows from a financial transaction to the value they would have today. If the value of expected future reflows in today’s money is lower than the amount extended today, then the difference represents a “gift”. This gift portion is called a grant equivalent if expressed as a monetary value, and a grant element if expressed as a percentage of the amount now extended.

For example, grants have a grant element of 100% as they are fully provided as “gifts”.  By contrast, a loan offered at market terms has a grant element of 0%. However, this becomes a positive percentage if the lender adds an element of generosity.  The grant element measure of aid provides a more accurate estimate of the donor’s effort.

In short, the grant equivalent is an estimate, at today’s value of money, of how much is being given away over the life of a financial transaction, compared with a transaction at market terms.  The grant equivalent is the grant element multiplied by the amount of money extended.

Learn more:

The question of debt relief

At the 2014 High Level Meeting it was agreed that changing the ODA measurement system from net flows to a risk-adjusted grant equivalent system would also change the basis on which debt relief of ODA loans was reported. The DAC reached a consensus on the treatment of debt relief on a grant equivalent basis in 2020, thus two years after the implementation of the grant equivalent as the standard for measuring ODA, noting that no major debt reorganisation occurred in 2018 and 2019. The agreement is an important step towards completing the modernisation of ODA.

The question of private sector instruments (PSI)

At the February 2016 DAC High Level Meeting, development ministers agreed on the principles to better reflect the donor effort involved in using PSI, such as loans to the private sector, equities, guarantees, mezzanine finance instruments and reimbursable grants. In 2018,  despite efforts by all parties, members only agreed on a provisional arrangement, maintaining the cash-flow measurement and ODA eligibility of some - but not all – PSI (see below). 

In October 2023, the DAC agreed on revised methods for treating PSI in ODA. The approved rules cover methods for measuring donor effort in:

  • Capital increases of donor institutions and vehicles that extend PSI, such as development finance institutions (DFIs),
  • Individual activities of such vehicles:
    • Loans to the private sector,
    • Equities,
    • Guarantees,
    • Mezzanine finance instruments and
    • Reimbursable grants.
While all members report details on both capital increases of their PSI vehicles and cash flows on individual activities, they count in ODA either capital increases or grant equivalent of individual PSI activities. The other will be reported and published for memorandum.


The new rules also strengthen transparency and accountability provisions, reporting requirements, additionality framework, ODA-integrity safeguards as well as monitoring and review mechanisms in the area of PSI (see here).

The revised directives will become effective in 2024 on ODA in 2023 with possible transition periods of one or two years. Until their full implementation, ODA in relation to PSI will continue being measured on cash-flow basis for either capital increases of PSI vehicles or certain activities of such vehicles, i.e.:

  • Loans to the private sector that convey a grant element of at least 25% calculated using a discount rate of 10%,
  • Equities, applying a cap on sales corresponding to the original investment,
  • Flows resulting from activated guarantees.


 The total ODA figure 

Until the full implementation of the new rules for PSI, total ODA and the ODA/GNI ratio are calculated by summing up gfrants,grant equivalents for sovereign and multilateral loans and for debt relief, and net disbursements for certain private sector instruments. As private sector instruments only represent around 1-3% of total ODA in 2018-22, this is deemed an acceptable practical solution for the time being.

Definition of ODA

The ODA grant equivalent is a measure of donor effort. Grants, loans and other flows entering the calculation of the ODA grant equivalent measure are referred to as ODA flows.

Beyond ODA: Total Official Support for Sustainable Development (TOSSD)

Total Official Support for Sustainable Development (TOSSD) measures the full array of resources to promote sustainable development in developing countries. It is designed to monitor all official resources flowing into developing countries for their sustainable development, but also private resources mobilised through official means. It also measures contributions to International Public Goods.

TOSSD complements ODA by increasing transparency and monitoring important new trends that are shaping the international development finance landscape.